The infrared nuclear emission of seyfert galaxies on parsec scales: Testing the clumpy torus models

23 pags. 8 figs., 9 tabs., 1 app.

Detalles Bibliográficos
Autores: Ramos Almeida, C., Levenson, N.A., Rodríguez Espinosa, J. M., Alonso-Herrero, A., Asensio Ramos, A., Radomski, J. T., Packham, Christopher, Fisher, R. S., Telesco, C. M.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2009
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/191388
Acceso en línea:http://hdl.handle.net/10261/191388
Access Level:acceso abierto
Palabra clave:Galaxies: Seyfert
Infrared: galaxies
Galaxies: active
Galaxies: nuclei
id ES_2dfa748ed33fe5e9230bfcf037edac5d
oai_identifier_str oai:digital.csic.es:10261/191388
network_acronym_str ES
network_name_str España
repository_id_str
dc.title.none.fl_str_mv The infrared nuclear emission of seyfert galaxies on parsec scales: Testing the clumpy torus models
title The infrared nuclear emission of seyfert galaxies on parsec scales: Testing the clumpy torus models
spellingShingle The infrared nuclear emission of seyfert galaxies on parsec scales: Testing the clumpy torus models
Ramos Almeida, C.
Galaxies: Seyfert
Infrared: galaxies
Galaxies: active
Galaxies: nuclei
title_short The infrared nuclear emission of seyfert galaxies on parsec scales: Testing the clumpy torus models
title_full The infrared nuclear emission of seyfert galaxies on parsec scales: Testing the clumpy torus models
title_fullStr The infrared nuclear emission of seyfert galaxies on parsec scales: Testing the clumpy torus models
title_full_unstemmed The infrared nuclear emission of seyfert galaxies on parsec scales: Testing the clumpy torus models
title_sort The infrared nuclear emission of seyfert galaxies on parsec scales: Testing the clumpy torus models
dc.creator.none.fl_str_mv Ramos Almeida, C.
Levenson, N.A.
Rodríguez Espinosa, J. M.
Alonso-Herrero, A.
Asensio Ramos, A.
Radomski, J. T.
Packham, Christopher
Fisher, R. S.
Telesco, C. M.
author Ramos Almeida, C.
author_facet Ramos Almeida, C.
Levenson, N.A.
Rodríguez Espinosa, J. M.
Alonso-Herrero, A.
Asensio Ramos, A.
Radomski, J. T.
Packham, Christopher
Fisher, R. S.
Telesco, C. M.
author_role author
author2 Levenson, N.A.
Rodríguez Espinosa, J. M.
Alonso-Herrero, A.
Asensio Ramos, A.
Radomski, J. T.
Packham, Christopher
Fisher, R. S.
Telesco, C. M.
author2_role author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv University of Florida
University of Kentucky
National Science Foundation (US)
Ministerio de Ciencia e Innovación (España)
Science and Technology Facilities Council (UK)
National Research Council of Canada
Comisión Nacional de Investigación Científica y Tecnológica (Chile)
Australian Research Council
Ministério da Ciência e Tecnologia (Brasil)
Ministerio de Ciencia, Tecnología e Innovación Productiva (Argentina)
Ministerio de Educación y Ciencia (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Galaxies: Seyfert
Infrared: galaxies
Galaxies: active
Galaxies: nuclei
topic Galaxies: Seyfert
Infrared: galaxies
Galaxies: active
Galaxies: nuclei
description 23 pags. 8 figs., 9 tabs., 1 app.
publishDate 2009
dc.date.none.fl_str_mv 2009
2019
2019
2019
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/191388
url http://hdl.handle.net/10261/191388
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
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MEC/AYA2007-67965-C03-01
MICINN/ESP2007-65475-C02-01
MEC/AYA2007-63881
https://doi.org/10.1088/0004-637X/702/2/1127
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv University of Chicago Press
publisher.none.fl_str_mv University of Chicago Press
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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spelling The infrared nuclear emission of seyfert galaxies on parsec scales: Testing the clumpy torus modelsRamos Almeida, C.Levenson, N.A.Rodríguez Espinosa, J. M.Alonso-Herrero, A.Asensio Ramos, A.Radomski, J. T.Packham, ChristopherFisher, R. S.Telesco, C. M.Galaxies: SeyfertInfrared: galaxiesGalaxies: activeGalaxies: nuclei23 pags. 8 figs., 9 tabs., 1 app.We present subarcsecond resolution mid-infrared (mid-IR) photometry in the wavelength range from 8 to 20 μm of 18 Seyfert galaxies, reporting high spatial resolution nuclear fluxes for the entire sample. We construct spectral energy distributions (SEDs) that the active galactic nucleus (AGN) dominates, relatively uncontaminated by starlight, adding near-IR measurements from the literature at similar angular resolution. We find that the IR SEDs of intermediate-type Seyferts are flatter and present higher 10 to 18 μm ratios than those of Seyfert 2 galaxies. We fit the individual SEDs with clumpy dusty torus models using the in-house-developed BayesClumpy tool. We find that the clumpy models reproduce the high spatial resolution measurements. Regardless of the Seyfert type, even with high spatial resolution data, near- to mid-IR SED fitting poorly constrains the radial extent of the torus. For the Seyfert 2 galaxies, we find that edge-on geometries are more probable than face-on views, with a number of clouds along equatorial rays of N 0 = 5-15. The 10 μm silicate feature is generally modeled in shallow absorption. For the intermediate-type Seyferts, N 0 and the inclination angle of the torus are lower than those of the Seyfert 2 nuclei, with the silicate feature appearing in weak emission or absent. The columns of material responsible for the X-ray absorption are larger than those inferred from the model fits for most of the galaxies, which is consistent with X-ray absorbing gas being located within the dust sublimation radius, whereas the mid-IR flux arises from an area farther from the accretion disk. The fits yield both the bolometric luminosity of the intrinsic AGN and the torus-integrated luminosity, from which we derive the reprocessing efficiency of the torus. In the models, the outer radial extent of the torus scales with the AGN luminosity, and we find the tori to be confined to scales less than 5 pc. © 2009. The American Astronomical Society. All rights reserved.C.R.A. and J.R.E. acknowledge the Spanish Ministry of Education and Science through projects PN AYA2007-67965-C03-01 and Consolider-Ingenio 2010 Program grant CSD2006-00070: C.R.A. thanks the University of Florida Astronomy Department, the Gemini Observatory Northern Operations Center, and the University of Kentucky Department of Physics and Astronomy for their hospitality during part of this project. N.A.L. acknowledges the work supported by the NSF under grant 0237291 and thanks the University of Florida Astronomy Department and the IAC for their hospitality during this project. A.A.H. acknowledges support from the Spanish Plan Nacional del Espacio under grant ESP2007-65475-C02-01 and from the SpanishMinistry of Science and Innovation under grant Proyecto Intramural Especial 200850I003. C.P. acknowledges support of the NSF through grant number 0704095. A.A.R. acknowledges the Spanish Ministry of Education and Science through project AYA2007-63881. This work is based on observations obtained at the Gemini Observatory, which is operated by the Association of Universities for Research in Astronomy, Inc., under a cooperative agreement with the NSF on behalf of the Gemini partnership: the National Science Foundation (United States), the Science and Technology Facilities Council (United Kingdom), the National Research Council (Canada), CONICYT (Chile), the Australian Research Council (Australia), Ministerio da Ciencia e Tecnologia (Brazil), and Ministerio de Ciencia, Tecnologıa e Innovacion Productiva (Argentina). The Gemini programs under which the data were obtained are GS-2003B-D-4, GS-2004ADD- 4, GS-2005B-DD, GS-2005A-Q-6, GN-2006A-Q-11, and GS-2006A-Q-30.Peer ReviewedUniversity of Chicago PressUniversity of FloridaUniversity of KentuckyNational Science Foundation (US)Ministerio de Ciencia e Innovación (España)Science and Technology Facilities Council (UK)National Research Council of CanadaComisión Nacional de Investigación Científica y Tecnológica (Chile)Australian Research CouncilMinistério da Ciência e Tecnologia (Brasil)Ministerio de Ciencia, Tecnología e Innovación Productiva (Argentina)Ministerio de Educación y Ciencia (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2019201920092019info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/191388reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#MEC/AYA2007-67965-C03-01MICINN/ESP2007-65475-C02-01MEC/AYA2007-63881https://doi.org/10.1088/0004-637X/702/2/1127Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1913882026-05-22T06:33:51Z
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